VirtualBox

source: vbox/trunk/src/VBox/HostDrivers/VBoxPci/linux/Makefile@ 61081

Last change on this file since 61081 was 61081, checked in by vboxsync, 9 years ago

allow to compile with gcc configured with --enable-default-pie (e.g. Ubuntu Yakkety)

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 6.9 KB
Line 
1#
2# Makefile for the VirtualBox Linux Host PCI Driver.
3# (For 2.6.x this file must be called 'Makefile'!)
4#
5
6#
7#
8# Copyright (C) 2011-2015 Oracle Corporation
9#
10# This file is part of VirtualBox Open Source Edition (OSE), as
11# available from http://www.virtualbox.org. This file is free software;
12# you can redistribute it and/or modify it under the terms of the GNU
13# General Public License (GPL) as published by the Free Software
14# Foundation, in version 2 as it comes in the "COPYING" file of the
15# VirtualBox OSE distribution. VirtualBox OSE is distributed in the
16# hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
17#
18
19#
20# First, figure out which architecture we're targeting and the build type.
21# (We have to support basic cross building (ARCH=i386|x86_64).)
22# While at it, warn about BUILD_* vars found to help with user problems.
23#
24ifeq ($(filter-out x86_64 amd64 AMD64,$(shell uname -m)),)
25 BUILD_TARGET_ARCH_DEF := amd64
26else
27 BUILD_TARGET_ARCH_DEF := x86
28endif
29ifneq ($(filter-out amd64 x86,$(BUILD_TARGET_ARCH)),)
30 $(warning Ignoring unknown BUILD_TARGET_ARCH value '$(BUILD_TARGET_ARCH)'.)
31 BUILD_TARGET_ARCH :=
32endif
33ifeq ($(BUILD_TARGET_ARCH),)
34 ifeq ($(ARCH),x86_64)
35 BUILD_TARGET_ARCH := amd64
36 else
37 ifeq ($(ARCH),i386)
38 BUILD_TARGET_ARCH := x86
39 else
40 BUILD_TARGET_ARCH := $(BUILD_TARGET_ARCH_DEF)
41 endif
42 endif
43else
44 ifneq ($(BUILD_TARGET_ARCH),$(BUILD_TARGET_ARCH_DEF))
45 $(warning Using BUILD_TARGET_ARCH='$(BUILD_TARGET_ARCH)' from the $(origin BUILD_TARGET_ARCH).)
46 endif
47endif
48
49ifneq ($(filter-out release profile debug strict,$(BUILD_TYPE)),)
50 $(warning Ignoring unknown BUILD_TYPE value '$(BUILD_TYPE)'.)
51 BUILD_TYPE :=
52endif
53ifeq ($(BUILD_TYPE),)
54 BUILD_TYPE := release
55else
56 ifneq ($(BUILD_TYPE),release)
57 $(warning Using BUILD_TYPE='$(BUILD_TYPE)' from the $(origin BUILD_TYPE).)
58 endif
59endif
60
61# override is required by the Debian guys
62override MODULE = vboxpci
63OBJS = \
64 linux/VBoxPci-linux.o \
65 VBoxPci.o \
66 SUPR0IdcClient.o \
67 SUPR0IdcClientComponent.o \
68 linux/SUPR0IdcClient-linux.o
69
70ifeq ($(BUILD_TARGET_ARCH),x86)
71OBJS += math/gcc/divdi3.o \
72 math/gcc/moddi3.o \
73 math/gcc/qdivrem.o \
74 math/gcc/udivdi3.o \
75 math/gcc/divdi3.o \
76 math/gcc/umoddi3.o
77endif
78
79ifneq ($(MAKECMDGOALS),clean)
80
81ifeq ($(KERNELRELEASE),)
82
83 #
84 # building from this directory
85 #
86
87 # kernel base directory
88 ifndef KERN_DIR
89 # build for the current kernel, version check
90 KERN_DIR := /lib/modules/$(shell uname -r)/build
91 ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
92 KERN_DIR := /usr/src/linux
93 ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
94 $(error Error: unable to find the sources of your current Linux kernel. \
95 Specify KERN_DIR=<directory> and run Make again)
96 endif
97 $(warning Warning: using /usr/src/linux as the source directory of your \
98 Linux kernel. If this is not correct, specify \
99 KERN_DIR=<directory> and run Make again.)
100 endif
101 else
102 ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
103 $(error Error: KERN_DIR does not point to a directory)
104 endif
105 endif
106
107 # includes
108 ifndef KERN_INCL
109 KERN_INCL = $(KERN_DIR)/include
110 endif
111 ifneq ($(shell if test -d $(KERN_INCL); then echo yes; fi),yes)
112 $(error Error: unable to find the include directory for your current Linux \
113 kernel. Specify KERN_INCL=<directory> and run Make again)
114 endif
115
116 # module install dir, only for current kernel
117 ifneq ($(filter install install_rpm,$(MAKECMDGOALS)),)
118 ifndef MODULE_DIR
119 MODULE_DIR_TST := /lib/modules/$(shell uname -r)
120 ifeq ($(shell if test -d $(MODULE_DIR_TST); then echo yes; fi),yes)
121 MODULE_DIR := $(MODULE_DIR_TST)/misc
122 else
123 $(error Unable to find the folder to install the support driver to)
124 endif
125 endif # MODULE_DIR unspecified
126 endif
127
128else # neq($(KERNELRELEASE),)
129
130 #
131 # building from kbuild (make -C <kernel_directory> M=`pwd`)
132 #
133
134endif # neq($(KERNELRELEASE),)
135
136# debug - show guesses.
137ifdef DEBUG
138$(warning dbg: KERN_DIR = $(KERN_DIR))
139$(warning dbg: KERN_INCL = $(KERN_INCL))
140$(warning dbg: MODULE_DIR = $(MODULE_DIR))
141endif
142
143KBUILD_VERBOSE ?= 1
144
145#
146# Compiler options
147#
148ifndef INCL
149 INCL := $(addprefix -I,$(KERN_INCL) $(EXTRA_INCL))
150 ifndef KBUILD_EXTMOD
151 KBUILD_EXTMOD := $(shell pwd)
152 endif
153 INCL += $(addprefix -I$(KBUILD_EXTMOD),/ /include /r0drv/linux)
154 INCL += $(addprefix -I$(KBUILD_EXTMOD)/vboxpci,/ /include /r0drv/linux)
155 export INCL
156endif
157ifneq ($(wildcard $(KBUILD_EXTMOD)/vboxpci),)
158 MANGLING := $(KBUILD_EXTMOD)/vboxpci/include/VBox/SUPDrvMangling.h
159else
160 MANGLING := $(KBUILD_EXTMOD)/include/VBox/SUPDrvMangling.h
161endif
162KFLAGS := -D__KERNEL__ -DMODULE -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 \
163 -DIN_SUP_R0 -DVBOX -DRT_WITH_VBOX -DVBOX_WITH_HARDENING
164ifdef VBOX_REDHAT_KABI
165 KFLAGS += -DVBOX_REDHAT_KABI
166endif
167ifeq ($(BUILD_TARGET_ARCH),amd64)
168 KFLAGS += -DRT_ARCH_AMD64
169else
170 KFLAGS += -DRT_ARCH_X86
171endif
172# must be consistent with Config.kmk!
173KFLAGS += -DVBOX_WITH_64_BITS_GUESTS
174ifeq ($(BUILD_TYPE),debug)
175 KFLAGS += -DDEBUG -DDEBUG_$(USER) -g
176 # IPRT_DEBUG_SEMS indicates thread wrt sems state via the comm field.
177 #KFLAGS += -DIPRT_DEBUG_SEMS
178endif
179
180# By default we use remap_pfn_range() kernel API to make kernel pages
181# visible for userland. Unfortunately, it leads to situation that
182# during debug session all structures on that page (such as PVM pointer)
183# are not accessible to the debugger (see #3214).
184# This code enables experimental support
185# for vm_insert_page() kernel API, allowing to export kernel pages
186# to the userland in more debugger-friendly way. Due to stability
187# concerns, not enabled by default yet.
188ifdef VBOX_USE_INSERT_PAGE
189 KFLAGS += -DVBOX_USE_INSERT_PAGE
190endif
191
192MODULE_EXT := ko
193$(MODULE)-y := $(OBJS)
194
195# build defs
196EXTRA_CFLAGS += -include $(MANGLING) $(INCL) $(KFLAGS) $(KDEBUG) -fno-pie
197
198all: $(MODULE)
199
200obj-m += $(MODULE).o
201
202# OL/UEK: disable module signing for external modules -- we don't have any private key
203$(MODULE):
204 $(MAKE) KBUILD_VERBOSE=$(KBUILD_VERBOSE) SUBDIRS=$(CURDIR) SRCROOT=$(CURDIR) CONFIG_MODULE_SIG= -C $(KERN_DIR) modules
205
206install: $(MODULE)
207 @mkdir -p $(MODULE_DIR); \
208 install -m 0644 -o root -g root $(MODULE).$(MODULE_EXT) $(MODULE_DIR); \
209 PATH="$(PATH):/bin:/sbin" depmod -a;
210
211install_rpm: $(MODULE)
212 @mkdir -p $(MODULE_DIR); \
213 install -m 0644 $(MODULE).$(MODULE_EXT) $(MODULE_DIR)
214
215else # eq ($(MAKECMDGOALS),clean)
216
217 ifndef KERN_DIR
218 KERN_DIR := /lib/modules/$(shell uname -r)/build
219 ifeq ($(wildcard $(KERN_DIR)/Makefile),)
220 KERN_DIR := /usr/src/linux
221 endif
222 endif
223 ifeq ($(wildcard $(KERN_DIR)/Makefile),)
224
225clean:
226 find . \( -name \*.o -o -name \*.cmd \) -print0 | xargs -0 rm -f
227 rm -rf .tmp_ver* $(MODULE).* Module.symvers Modules.symvers modules.order
228
229 else
230
231clean:
232 $(MAKE) KBUILD_VERBOSE=$(KBUILD_VERBOSE) SUBDIRS=$(CURDIR) SRCROOT=$(CURDIR) -C $(KERN_DIR) clean
233
234 endif
235
236endif # eq($(MAKECMDGOALS),clean)
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